Abstract
Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.
Original language | English |
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Pages (from-to) | 182-190 |
Number of pages | 9 |
Journal | Computers and Fluids |
Volume | 118 |
DOIs | |
Publication status | Published - 2 Sep 2015 |
Keywords
- Buongiorno model
- Free convection
- Horizontal annulus
- Nanofluids
- Numerical method
- Porous medium
ASJC Scopus subject areas
- Computer Science(all)
- Engineering(all)